Patent US2415951A successfully refreshed from Google Patents.
US2415951A
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Catalyst bed temperature control
Assignee: Pan American Refining Corp
•
Filing: 1939-05-05
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Granted: 1947-02-18
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Expires: 1959-05-05
Abstract
No abstract record available.
Inventors
- 👤 Chalmer G Kirkbride
- 👤 Jennings B Hamblen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:26
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2527/00; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1947306A
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US2040658A
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US2104858A
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GB451788A
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US2102073A
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US2245734A
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GB467853A
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US2116157A
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US2176354A
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FR831682A
Cited
US2170275A
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US2260990A
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US2291216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |